患者常在劳累之后低热，伴有头晕乏力，气短懒言，食少纳呆，大便溏薄，舌淡苔白，脉弱。其治法是（）

A.滋阴清热

B.活血化瘀

C.清肝泻热

D.甘温除热

E.益气养血

If the firms failed to make enough money,they would______.

A．close down

B．call off

C．turn down

D．set off